[openib-general] [Bug 332] New: Data does not get to IPv6 sockets after driver reset

[bugzilla-daemon at lists.openfabrics.org]

https://bugs.openfabrics.org/show_bug.cgi?id=332

           Summary: Data does not get to IPv6 sockets after driver reset
           Product: OpenFabrics Linux
           Version: gen2
          Platform: All
        OS/Version: Other
            Status: NEW
          Severity: normal
          Priority: P3
         Component: IPoIB
        AssignedTo: bugzilla at openib.org
        ReportedBy: yohadd at mellanox.co.il


When there is a socket that send data over IPv6, and at the same time the
driver is doing reset, after the reset the data does not get to the
destination.

More Info:
- Over IPv4 the data get to the remote side after the driver reset finished.
- Running the application again, after the reset, will succeed to send data.


How to reproduce:

1) run opensm on remote side.

run on local side:
2) ping6 <IPv6 addr of remote side IPoIB I/F> -I <IPoIB I/F>
3) run on ather shell: rmmod ib_mthca; modprob -i ib_mthca

You will see that after the reset the ping6 continue to fail, even after the
driver is up.

Output:
64 bytes from fe80::202:c900:100:d061: icmp_seq=1 ttl=64 time=9.77 ms
64 bytes from fe80::202:c900:100:d061: icmp_seq=2 ttl=64 time=0.071 ms
64 bytes from fe80::202:c900:100:d061: icmp_seq=3 ttl=64 time=0.063 ms
64 bytes from fe80::202:c900:100:d061: icmp_seq=4 ttl=64 time=0.084 ms
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable


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